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4 years ago

Answere Number 6,7,8,9,10,11,12 PLEASE help :)

Mathematics

2 answers:

Brrunno [24]4 years ago

8 0

6.)17/12 7.)9/10 8)1 1/6 9.)1 3/8 10.)7/6 11.)7/10 12.)1 1/8, I agree with the other girl/boy.

stepan [7]4 years ago

7 0

6.)17/12 7.)9/10 8)1 1/6 9.)1 3/8 10.)7/6 11.)7/10 12.)1 1/8

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The summer has ended and it’s time to drain the swimming pool. 20 minutes after pulling the plug, there is still 45 000L of wate

WITCHER [35]

Answer:

a) -900 L/min

b) 63000 L

c) v = -900t +63000

d) 7200 L

Step-by-step explanation:

a) You are given two points on the curve of volume vs. time:

(t, v) = (20, 45000) and (70, 0)

The rate of change is ...

Δv/Δt = (0 -45000)/(70 -20) = -45000/50 = -900 . . . . liters per minute

b) In the first 20 minutes, the change in volume was ...

(20 min)(-900 L/min) = -18000 L

So, the initial volume was ...

initial volume -18000 = 45000

initial volume = 63,000 . . . . liters

c) Since we have the slope and the intercept, we can write the equation in slope-intercept form:

v = -900t +63000

d) Put the number in the equation and do the arithmetic.

When t=62, the amount remaining is ...

v = -900(62) +63000 = -55800 +63000 = 7200

7200 L remain after 62 minutes.

6 0

3 years ago

HELP!!! <br><br> Which function shows a fabric with a price of $1.25 per square yard?

ohaa [14]

Answer:

$y=1.25x$

Step-by-step explanation:

Let us assume that,

x represents the number of sq. yards of fabric and

y represents price of the fabric.

As the unit price of the fabric i.e cost per sq. yard of fabric is $1.25, so for each number of sq. yard of fabric, the cost for that much of fabric will be multiple of 1.25 of that number.

i.e $y=1.25x$

Here, the rate of change is 1.25. So for each increase in x, the amount of increase in y is 1.25

The table along with the graph have been attached below.

8 0

3 years ago

Read 2 more answers

Which of the following are solutions to the system shown below? Select all that apply. a (0,-1) b (1,0) C (0,0) d (3,4) e (0,1)

Papessa [141]

Answer:

Options (a) and (c)

Step-by-step explanation:

There are so many inequalities graphed in the picture attached.

Common area (Triangle shown in the center) of the shaded regions will be the solution of the system of inequalities.

And points lying in this common region will be the solutions.

Points lying in this region are (0, -1) and (0, 0).

Therefore, Options (a) and (c) are the solutions.

4 0

3 years ago

drew 's tree company delivered pear tree in groups of 4.yesterday the company delivered 8 groups of pears trees how many pear tr

lina2011 [118]

................
4 × 8 = 32

5 0

4 years ago

Read 2 more answers

4/9 / 9/5= the answer is

mr Goodwill [35]

Answer:

20/81

Step-by-step explanation:

Without parentheses, it is hard to tell what you are dividing. We assume you want ...

(4/9)/(9/5)

Then ...

$\displaystyle\frac{\left(\frac{4}{9}\right)}{\left(\frac{9}{5}\right)}=\frac{4}{9}\cdot\frac{5}{9}=\frac{4\cdot 5}{9\cdot 9}=\frac{20}{81}$

_____

As written (without parentheses), your expression is evaluated left to right, so evaluates to ...

4/(9·9·5) = 4/405

7 0

3 years ago